Detail publikačního výsledku

Novel Second-Order Transfer Section for Frequency-Selective Response Generation in Comb Filters

ŠOTNER, R.; SEMENOV, D.; ANDRIUKAITIS, D.; SVOBODA, M.; POLÁK, L.

Originální název

Novel Second-Order Transfer Section for Frequency-Selective Response Generation in Comb Filters

Anglický název

Novel Second-Order Transfer Section for Frequency-Selective Response Generation in Comb Filters

Druh

Článek WoS

Originální abstrakt

This article introduces a novel unified second-order filtering topology for standard band-reject (sBR) and inverting band-reject filter, enabling selective response generation. It is applied in the design of special comb filters that allow attenuation as well as amplification of specific bands. The presented solution offers several advantageous features in topology, enhanced cascadability, better parameter-setting performance, and the use of readily available off-the-shelf components, all while reducing overall costs. This is a significant improvement compared to the previous solutions in this field, which relied on a very expensive CMOS process. The topology employs a combination of an operational transconductance amplifier (OTA) and a current feedback amplifier. The intended center frequencies and transfer values of the comb filter are set to 50 Hz (-20 dB), 1 kHz (+26 dB), 10 kHz (+17 dB), and 100 kHz (-30 dB). The comb filter was experimentally verified via simulations as well as laboratory measurements utilizing LT1228 devices in a fabricated prototype.

Anglický abstrakt

This article introduces a novel unified second-order filtering topology for standard band-reject (sBR) and inverting band-reject filter, enabling selective response generation. It is applied in the design of special comb filters that allow attenuation as well as amplification of specific bands. The presented solution offers several advantageous features in topology, enhanced cascadability, better parameter-setting performance, and the use of readily available off-the-shelf components, all while reducing overall costs. This is a significant improvement compared to the previous solutions in this field, which relied on a very expensive CMOS process. The topology employs a combination of an operational transconductance amplifier (OTA) and a current feedback amplifier. The intended center frequencies and transfer values of the comb filter are set to 50 Hz (-20 dB), 1 kHz (+26 dB), 10 kHz (+17 dB), and 100 kHz (-30 dB). The comb filter was experimentally verified via simulations as well as laboratory measurements utilizing LT1228 devices in a fabricated prototype.

Klíčová slova

Comb filters; Semiconductor device modeling; Band-pass filters; Resonator filters; Transconductance; Electrocardiography; Standards; Topology; Sensors; Attenuation; Band-reject filter; comb filter; current feedback amplifier; inverse filter; notch; operational transconductance amplifier (OTA)

Klíčová slova v angličtině

Comb filters; Semiconductor device modeling; Band-pass filters; Resonator filters; Transconductance; Electrocardiography; Standards; Topology; Sensors; Attenuation; Band-reject filter; comb filter; current feedback amplifier; inverse filter; notch; operational transconductance amplifier (OTA)

Autoři

ŠOTNER, R.; SEMENOV, D.; ANDRIUKAITIS, D.; SVOBODA, M.; POLÁK, L.

Vydáno

07.03.2025

Nakladatel

IEEE

Místo

PISCATAWAY

ISSN

0018-9456

Periodikum

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT

Svazek

74

Číslo

3

Stát

Spojené státy americké

Strany od

1

Strany do

9

Strany počet

9

URL

https://ieeexplore.ieee.org/abstract/document/10916844

Plný text v Digitální knihovně

http://hdl.handle.net/11012/250892

BibTex

@article{BUT197636,
  author="Roman {Šotner} and Dmitrii {Semenov} and Darius {Andriukaitis} and Marek {Svoboda} and Ladislav {Polák}",
  title="Novel Second-Order Transfer Section for Frequency-Selective Response Generation in Comb Filters",
  journal="IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT",
  year="2025",
  volume="74",
  number="3",
  pages="1--9",
  doi="10.1109/TIM.2025.3548818",
  issn="0018-9456",
  url="https://ieeexplore.ieee.org/abstract/document/10916844"
}

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